how much is the lowest amount of money a 100k site a day should make
 

please post info.

fiddy cent.

zero minus the cost of hosting

Are you skimming traffic?

If you're not skimming, and this is a site promoting sponsors, I think you could make 8-12 sales per day.

what do you mean the site is from trading traffic. Only banners on the site are to me.

how long is a piece of string?

Skimming/trading - clicks to say a thumbnail or text link that should end up at content sends you to another site all together, in return they send you back some traffic.

a site could be losing millions of $$$ in the right situation so the question is kinda silly no offense.

if you could put ANYTHING on the site and keep the 100k in traffic , and it was fairly avg traffic i would say a rough min would be 1:5000 so 20 or so sales per day at lets say $30 pps

$600 per day

without knowing what kind of site it is you can't even begin to theorize how much it could make... but 100k site could actually very easily be losing $$... or it could be making millions per year...

more info needed

Type of site?

Type of traffic? SE, Skimmed, Feeder...

What's promoted on the site?

There's no lower limit: you could run a TGP with huge thumbs, or host your own galleries, or a tube with under compressed vids/crap freeloader traffic... then you may end up paying more in bw each month than the cheques you're receiving from sponsors. (Less likely to happen these days unless your host is ripping you off)

id think worse you could do is $500/day. thats if you had the shittiest traffic and had half a brain.

100k/day to my sites would bring in another at least 1000$ a day, so if you have less than 500$ you are doing something wrong

It all depends...

I can buy 100k for $300 every day, so please teach me how to turn that into 1000$ .

You're not factoring in worst case, he could be sending to galleries, not direct to the paysite.
eg. worst case : 100k traffic, 200% prod = 200k clicks to galleries .... then 5% ctr = 10k to paysites ... then 1:5000 conversion ratio = 2 sales per day ... at revshare $10 with no rebills.
= $20 per day. Don't spend it all at once..

... then bandwidth for 100k daily might be 30mbps at 95th percentile ... at some hosts, that could be $1000 or more per month = $30 per day hosting.
so $20 per day sales - hosting $30 per day = loss of $10 per day + wasted time.

Worst case scenario? $3k/month. That's minimum paysite conversions/sales each day, and very minimum ad sales per month.